CBSE ADDA

Work sheet: Subject – Maths, Class – VIII- Chapter: Probability 1. A coin is tossed twice. Find the robability of getting both tails? 2. Find the probability of getting even number between 10 to 25. 3. A die is thrown once. Find the probability of getting a prime number. 4. One card is drawn from a well shuffled deck of 52 cards. Find the probability of getting a face card. 5. What is the maximum value of the probability for an event? 6. A bag contains 9 red, 7 white and 4 black balls. A ball is drawn at random. Find the probability that the ball drawn is not red. 7. In the word “EDUCATION” find the probability of getting a vowel. 8. Out of 400 bulbs in a box, 15 bulbs are defective. One bulb is taken at random from the box. Find the probability that the bulb is not defective. 9. A die is thrown once. What is the probability of getting a multiple of 3. 10. A card is drawn from a pack of 52 cards. Find the probability of drawing a red face card. 11. A bo

Useful Download rther reading  post  QUADRILATERAL THEOREMS PROPERTIES OF PARALELLOGRAM MEAN MEDIAN MODE COMPOUND INTEREST ALGEBRIC EXPRESSION ALGEBRIC IDENTITY Square and square root Factorization CUBES AND CUBE ROOTS  

8 th   Mensuration CBSE Enrichment questions 1. A rectangular tank can hold 650 litres of milk . if it is 130cm long & 250cm wide , find the height of the tank. Solution:   Volume of   rectangular tank   = 650 litres = 650 × 1000 cm   3   = 650000 cm   3 We know that  Volume of a cuboid = l × b × h 650000 = 130 × 250 × h ⇒   h = (650000)/( 130 × 250 )= 20 cm Therefore, height of the tank = 20 cm 2. a hall is of length 16m , breadth 14m & height 5m . Calculate the no: of persons that can be accommodated in the hall , assuming 3.5m 3   of air is required for each person. Solution:   ∴ Volume of the hall = length × breadth × height                                                     = 16 × 14 × 5                                                       = 1120 m 3 Volume occupied my 1 man = 3.5 m 3 3.5 m 3    of air   occupied my 1 man 1120 m 3    of air   occupied my   (   1/3.5)x   1120= 320   man Therefore, n

Syllabus for 8th CBSE for SA-I & SA-II Chapters SA-I        Rational numbers Linear equations in one variable Understanding quadrilaterals Practical geometry Data handling Square & square roots Cube & cube roots Comparing quantities SA-II    Algebraic expressions and identities Visualizing solid figures Mensuration Exponents and powers Direct & inverse proportions Factorization Introduction to graphs Playing with numbers As per the KVS (HQ) Communication the following split up syllabus will continue for the year 2014-15.Hence no change in the split up syllabus   Syllabus (C C E)CLASS VIII 2012-13 ENGLISH CLASS VIII   HINDI CLASS VIII SANSKRIT CLASS VIII SOCIAL SCIENCE CLASS VIII MATHEMATICS CLASS VIII - SCIENCE CLASS VIII

CBSE MATH STUDY: CCE CBSE Sample Papers Class VIII Mathematics -2 : CCE CBSE Sample Papers Class VIII Mathematics (2012-2013) Section-A 1. The Compound interest is a) always less than the simple inte...  View -Download CBSE Sample Papers Class VIII Mathematics (2012-2013)-1 1) A dealer buys a wrist watch for Rs.225 and spends RS.15 on its repairs. If he sells the same for RS.300, find his profit percent. (a) 75% (b) 60% (c) 25% (d) 20% 2) Mona gets 98 marks in her exams. This amounts to 56% of the total marks. What are the maximum marks? (a) 175 (b) 150 (c) 200 (d) 160       View -Download Pattern of 8th maths Sample paper term -1 View

Q. Places A and B are 100kms apart on a highway. One car starts from  A and another starts from B at the same time. If the car travels  in the same direction at different the speeds, they meet in 5hrs.If they travelled towards each other they meet in 1hr.What are the speeds of the two cars? Let the speed of 1st car and 2nd car be x km/h and y km/h. Respective speed of both cars while they are travelling in same direction = (x-y) km/h Respective speed of both cars while they are travelling in opposite directions i.e., travelling towards each other = ((x + y) km/h According to the given information, First case, in the same direction A and  B meet in 5hrs Distance cover to meet = distance x time 5 (x-y) = 100      Þ        x – y =100/5             Þ      x- y  = 20          Þ  x = 20+y Second case, If they travelled towards each other they meet in 1hr, 1(x+y)    = 100    Þ      20+y +y =100 2y= 100-20=80 Y=80/2=40 So, x = 100 – 40= 60 Hence, speed of one car = 60 km/h and speed of other

CBSE MATH STUDY: 8th maths :8th Linear Equations of one or two Vari... : 8th Mathematics JSUNIL TUTORIAL,SAMASTIPUR   What is an equation? A statement which contains the equ...

Class 8 S. No. Chapters  Tutorials  Videos  Practice  Interactivities  Assessments   1. Rational Numbers    1     1 1   1    2     2. Linear Equations in One Variable    1    2    3   1 1    2    1   2    3        3. Understanding Quadrilaterals    1    2    3   1    1      1    2    3   4    1      4. Practical Geometry    1    2    3   1            5. Data Handling    1    2    3   1        1    2    3    4  5      1    2    3  6. Squares and Square Roots    1    2    3   1 1    2    3    1    2     1    2     7. Cubes and Cube Roots    1    2    3   1 1   2      1      8. Comparing Quantities    1    2    3     1   1        1    2      1   2    3   4    5  9. Algebraic Expressions and Identities    1    2    3   1 1    2    3 1     1    2  10. Visualising Solid Shapes    1   2     1 1   2   3   4   5    1     11. Mensuration    1    2    3   1     1    2    3    1      12. Exponents and Powers    1    2     1 1    2    3   4 1   2   3    4          13. Direct a